org.apache.flink.table.runtime.operators.python.scalar

Class RowDataPythonScalarFunctionOperator

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperator<OUT>

org.apache.flink.streaming.api.operators.python.AbstractPythonFunctionOperator<IN,OUT>

org.apache.flink.table.runtime.operators.python.AbstractStatelessFunctionOperator<IN,OUT,UDFIN>

org.apache.flink.table.runtime.operators.python.scalar.AbstractPythonScalarFunctionOperator<RowData,RowData,RowData>

org.apache.flink.table.runtime.operators.python.scalar.AbstractRowDataPythonScalarFunctionOperator

org.apache.flink.table.runtime.operators.python.scalar.RowDataPythonScalarFunctionOperator

All Implemented Interfaces:

Serializable, CheckpointListener, BoundedOneInput, KeyContext, OneInputStreamOperator<RowData,RowData>, SetupableStreamOperator<RowData>, StreamOperator<RowData>, StreamOperatorStateHandler.CheckpointedStreamOperator, Disposable

@Internal
public class RowDataPythonScalarFunctionOperator
extends AbstractRowDataPythonScalarFunctionOperator

The Python ScalarFunction operator for the blink planner.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.table.runtime.operators.python.AbstractStatelessFunctionOperator

AbstractStatelessFunctionOperator.StreamRecordCRowWrappingCollector, AbstractStatelessFunctionOperator.StreamRecordRowDataWrappingCollector

Field Summary

Fields inherited from class org.apache.flink.table.runtime.operators.python.scalar.AbstractRowDataPythonScalarFunctionOperator

reuseJoinedRow, rowDataWrapper

Fields inherited from class org.apache.flink.table.runtime.operators.python.scalar.AbstractPythonScalarFunctionOperator

forwardedFields, scalarFunctions

Fields inherited from class org.apache.flink.table.runtime.operators.python.AbstractStatelessFunctionOperator

bais, baisWrapper, forwardedInputQueue, inputType, outputType, userDefinedFunctionInputOffsets, userDefinedFunctionInputType, userDefinedFunctionOutputType, userDefinedFunctionResultQueue

Fields inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

chainingStrategy, latencyStats, LOG, metrics, output, processingTimeService

Constructor Summary

Constructors

Constructor and Description
RowDataPythonScalarFunctionOperator(Configuration config, PythonFunctionInfo[] scalarFunctions, RowType inputType, RowType outputType, int[] udfInputOffsets, int[] forwardedFields)

Method Summary

Modifier and Type	Method and Description
PythonFunctionRunner<RowData>	createPythonFunctionRunner(org.apache.beam.sdk.fn.data.FnDataReceiver<byte[]> resultReceiver, PythonEnvironmentManager pythonEnvironmentManager, Map<String,String> jobOptions)
void	emitResults() Sends the execution results to the downstream operator.
void	open() This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g.

Methods inherited from class org.apache.flink.table.runtime.operators.python.scalar.AbstractRowDataPythonScalarFunctionOperator

bufferInput, getFunctionInput

Methods inherited from class org.apache.flink.table.runtime.operators.python.scalar.AbstractPythonScalarFunctionOperator

getPythonEnv

Methods inherited from class org.apache.flink.table.runtime.operators.python.AbstractStatelessFunctionOperator

createPythonFunctionRunner, processElement

Methods inherited from class org.apache.flink.streaming.api.operators.python.AbstractPythonFunctionOperator

close, createPythonEnvironmentManager, dispose, endInput, getFlinkMetricContainer, getPythonConfig, prepareSnapshotPreBarrier, processWatermark

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperator

getChainingStrategy, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getTimeServiceManager, getUserCodeClassloader, initializeState, initializeState, isUsingCustomRawKeyedState, notifyCheckpointAborted, notifyCheckpointComplete, numEventTimeTimers, numProcessingTimeTimers, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processWatermark1, processWatermark2, reportOrForwardLatencyMarker, setChainingStrategy, setCurrentKey, setKeyContextElement1, setKeyContextElement2, setProcessingTimeService, setup, snapshotState, snapshotState

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.flink.streaming.api.operators.OneInputStreamOperator

processLatencyMarker

Methods inherited from interface org.apache.flink.streaming.api.operators.StreamOperator

getMetricGroup, getOperatorID, initializeState, setKeyContextElement1, setKeyContextElement2, snapshotState

Methods inherited from interface org.apache.flink.runtime.state.CheckpointListener

notifyCheckpointAborted, notifyCheckpointComplete

Methods inherited from interface org.apache.flink.streaming.api.operators.KeyContext

getCurrentKey, setCurrentKey

Constructor Detail

RowDataPythonScalarFunctionOperator

public RowDataPythonScalarFunctionOperator(Configuration config,
                                           PythonFunctionInfo[] scalarFunctions,
                                           RowType inputType,
                                           RowType outputType,
                                           int[] udfInputOffsets,
                                           int[] forwardedFields)

Method Detail

open

public void open()
          throws Exception

Description copied from class: AbstractStreamOperator

This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.

The default implementation does nothing.

Specified by:

open in interface StreamOperator<RowData>

Overrides:

open in class AbstractRowDataPythonScalarFunctionOperator

Throws:

Exception - An exception in this method causes the operator to fail.

emitResults

public void emitResults()
                 throws IOException

Description copied from class: AbstractPythonFunctionOperator

Sends the execution results to the downstream operator.

Specified by:

emitResults in class AbstractPythonFunctionOperator<RowData,RowData>

Throws:

IOException

createPythonFunctionRunner

public PythonFunctionRunner<RowData> createPythonFunctionRunner(org.apache.beam.sdk.fn.data.FnDataReceiver<byte[]> resultReceiver,
                                                                PythonEnvironmentManager pythonEnvironmentManager,
                                                                Map<String,String> jobOptions)

Specified by:

createPythonFunctionRunner in class AbstractStatelessFunctionOperator<RowData,RowData,RowData>